Star · K2III
HIP 22393
HIP 22393 is a giant star of spectral type K2III in the constellation Auriga, 233.9 light-years from the Sun.
| Constellation | Auriga |
|---|---|
| Distance | 233.9 light-years (71.7 pc) |
| Apparent magnitude | magnitude 5.57 |
| Absolute magnitude | magnitude 1.29 |
| Spectral type | K2III |
| Surface temperature | 4,450 K |
| Luminosity | 49.5 L☉ |
| Radius | 11.9 R☉ |
| Mass | 2.77 M☉ (estimated) |
| Right ascension (J2000) | 4h 49m 12.9s |
| Declination (J2000) | +31° 26′ 15″ |
| Space velocity (relative to the Sun) | 42.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.57). Visible from the whole Northern Hemisphere and south to latitude 59° S. North of latitude 59° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1792. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.1 million years.
The Sun seen from there
From a planet around HIP 22393, the Sun would look like a star of magnitude 9.11, in the direction where our sky has the constellation Scorpius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 21783 8.76 light-years
- HIP 22718 13.8 light-years
- HIP 23611 14.4 light-years
- HIP 21516 15.0 light-years
- HIP 21760 15.4 light-years
- HIP 21105 17.5 light-years
- HIP 23283 17.6 light-years
- HIP 20904 18.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.